Home / 4,190.55-6,285.84-1,268.88

Finding the Fourth Proportional to 4,190.55, 6,285.84 and 1,268.88

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Solution

The fourth proportional to 4,190.55, 6,285.84 and 1,268.88 is: 1,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.55 : 6,285.84 = 1,268.88 : x
  2. Step 2: Convert to fraction form
    4,190.55/6,285.84 = 1,268.88/x
  3. Step 3: Cross multiply
    4,190.55x = 6,285.84 × 1,268.88
  4. Step 4: Simplify right side
    4,190.55x = 7,975,948.33
  5. Step 5: Solve for x
    x = 7,975,948.33/4,190.55
  6. Step 6: Final answer
    x = 1,903.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.